Liquid-sealed vane oscillator

Details Liquid-sealed vane oscillator Liquid-sealed vane oscillator

1998-04-22

1999-10-05

Ramirez, Nestor

Pumps

Expansible chamber type

Oscillating pumping member

417204, 417313, 418267, 310 11, F04B 2310

Patent

active

059613025

ABSTRACT:
A liquid-sealed vane oscillator includes a housing defining a cavity corresponding to part of a virtual annulus centered around, and extending at least 180.degree. about, an axis of rotation and delimited by first and second ends. A vane is mounted rotatably within the cavity. The vane includes a first seal and a second seal carried with the vane and deployed so as to subdivide the cavity into a first chamber of variable volume between the first end and the first seal, a second chamber of variable volume between the second end and the second seal, and an intermediate volume between the first seal and the second seal. At least one port is provided in fluid communication with each of the first and second chambers. The oscillator also has an axial shaft, penetrating and extending from the cavity, which is mechanically coupled to the vane so as to allow exchange of mechanical power with an external device. A liquid circulation system supplies a liquid to the intermediate volume at a pressure such that the liquid flows past the first and second seals into the first and second chambers.

REFERENCES:
patent: 5115157 (1992-05-01), Blumenau

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